Antenatal examination auxiliary bed

Abstract

The invention relates to the technical field of gynecological examination beds, in particular to an antenatal examination auxiliary bed which comprises an examination auxiliary bed body composed of a bed body installed on a base and examination equipment, a cavity and a penetrating opening are formed in the bed body, and a hip supporting structure and an examination auxiliary part for shielding the hip supporting structure are installed in the cavity; the inspection auxiliary part is composed of a replacing mechanism, a vacuum structure, an adjusting structure and a driving mechanism. The replacement mechanism comprises a mounting seat fixed in the cavity and a roller rotationally mounted on the inner side of the mounting seat, a disposable shielding bag is mounted on the outer surface of the roller in a winding manner, a first transmission structure matched with the driving mechanism for use is mounted on the roller, and a second transmission structure is mounted between the piston block and the driving mechanism. The health protection level of the pregnant woman during examination is improved, the operation efficiency and the user experience are remarkably improved through the automatic and intelligent design, and wide application prospects and market value are achieved.

Description

Technical Field

[0001] The present invention relates to an auxiliary bed for prenatal examination, and particularly to an auxiliary bed for prenatal examination, belonging to the technical field of gynecological examination beds. Background Art

[0002] Prenatal examination refers to providing a series of medical and nursing suggestions and measures for pregnant women. The purpose is to prevent and detect complications early through the monitoring of pregnant women and fetuses, reduce their adverse effects. Providing correct examination methods and medical suggestions during this period is the key to reducing the maternal mortality rate and perinatal mortality rate.

[0003] When a pregnant woman undergoes prenatal examination, usually the pregnant woman lies flat on the examination bed and is examined by a professional obstetrician; currently, lying in childbirth and giving birth while sitting on a delivery chair are common methods, each having its own advantages and disadvantages. For example, when giving birth while sitting, with the effect of gravity, the pregnant woman will save some strength, but it poses higher requirements for the midwife to prevent severe laceration of the birth canal. Therefore, there are usually few sitting delivery beds. In addition, during the delivery process, medical staff need to frequently replace the sterile pads under the pregnant woman's buttocks to keep the buttocks of the pregnant woman as clean as possible and avoid bacterial infection during the long delivery process. During the process of replacing the sterile pads, usually the medical staff reminds the pregnant woman to slightly lift her buttocks, the medical staff removes the contaminated sterile pad, and then lays a clean sterile pad again. This process requires the pregnant woman to lift her buttocks for a period of time, which is more difficult and tormenting for a pregnant woman who is exhausted during a long delivery.

[0004] Therefore, it is urgent to improve the examination auxiliary bed to solve the above existing problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an auxiliary bed for prenatal examination, which not only improves the level of hygienic protection for pregnant women during examination, but also significantly improves the operation efficiency and user experience through automated and intelligent designs. At the same time, it is easy to maintain and clean, and has broad application prospects and market value.

[0006] To achieve the above purpose, the main technical solutions adopted by the present invention include: an auxiliary bed for prenatal examination, including an examination auxiliary bed body composed of a bed body installed on a base and examination equipment. A cavity and a through opening are provided inside the bed body. A hip support structure and an examination auxiliary part for shielding the hip support structure are installed in the cavity. The hip support structure includes a support seat and a cushion that are detachably connected. The examination auxiliary part is composed of a replacement mechanism, a vacuum structure, an adjustment structure, and a driving mechanism; the replacement mechanism includes a mounting seat fixed inside the cavity and a roller rotatably installed inside the mounting seat. A disposable shielding bag is wound around the outer surface of the roller, and a transmission structure one for cooperating with the driving mechanism is installed on the roller. The vacuum structure includes a sleeve and a piston block that are movably connected, and a connecting pipe that is fixedly connected between the sleeve and the hip support structure. A second transmission structure is installed between the piston block and the driving mechanism; The adjusting structure includes a sliding member slidably disposed inside the mounting frame, and a tension pulley and a connecting rod mounted on the outer surface of the sliding member and respectively connected to the first transmission structure and the second transmission structure.

[0007] Preferably, the through hole communicates with the cavity and also communicates with the upper surface of the bed body. A protective frame for protection is embedded and installed inside the through hole.

[0008] Preferably, the shape of the cushion is adapted to the through hole. The inside of the support base is hollow, and air outlet holes communicating with the support base are formed inside the cushion.

[0009] Preferably, the number of the replacement mechanisms is two. The two replacement mechanisms are symmetrically distributed inside the cavity. The disposable shielding bag is wound around the outer surfaces of two rollers, and the disposable shielding bag is located above the air outlet holes and is attached to the upper surface of the cushion through the vacuum structure.

[0010] Preferably, the first transmission structure is composed of two transmission wheels and a transmission belt drivingly connected between the two transmission wheels. The two transmission wheels are respectively fixed to the same end of the two rollers.

[0011] Preferably, the driving mechanism includes a motor seat fixed to the inner bottom wall of the cavity, a dual-axis driving motor fixed inside the motor seat, and a first driving member and a second driving member fixed to the two output shafts of the dual-axis driving motor. Among them, the first driving member is connected to the first transmission structure, and the second driving member is connected to the second transmission structure.

[0012] Preferably, the first driving member includes a first transmission shaft fixed to one of the transmission wheels and a worm fixed to one of the output shafts of the dual-axis driving motor. A worm gear meshing with the worm is fixed to the end of the first transmission shaft away from the transmission wheel; The second driving member is composed of a second transmission shaft, a transmission gear, and a driven gear. A second limiting seat for supporting the second transmission shaft is fixed to the outer surface of the mounting frame. The two ends of the second transmission shaft are respectively connected and fixed to the other output shaft of the dual-axis driving motor and the transmission gear.

[0013] Preferably, the second transmission structure includes a lifting pull rod and a screw rod that are threadedly connected. The ends of the lifting pull rod and the screw rod away from each other are respectively connected to the piston block and the mounting frame. The driven gear is fixed to the outer surface of the screw rod, and the driven gear meshes with the transmission gear.

[0014] Preferably, a chamber is formed inside the sleeve, the piston block is slidably disposed inside the chamber, and a valve is installed inside the piston block. A first limit seat for limiting the lifting rod is fixed to the inner side of the chamber, and the lifting rod slidably penetrates through the inside of the first limit seat.

[0015] Preferably, the sliding member includes a slider fixedly installed inside the mounting frame and a connecting block fixed to one side of the slider and extending outside the mounting frame. The tension pulley bearing is installed on the outer surface of the slider, and the bottom side of the tension pulley is in contact with the outer surface of the transmission belt.

[0016] The present invention has at least the following beneficial effects: 1. For the prenatal examination auxiliary bed part, the support structure provides comfortable support for pregnant women. The use of the disposable shielding bag effectively isolates the direct contact between the cushion and the outside world, reduces the risk of bacterial cross-infection, and greatly improves the hygiene standard. The design of the dual-axis drive motor and the transmission system enables the automatic winding and unwinding of the disposable shielding bag, eliminating the need for manual replacement, and significantly improving the examination efficiency. The meshing of the transmission gear and the driven gear and the rotation of the lead screw realize the automatic displacement of the lifting rod, further simplifying the operation process.

[0017] 2. For the prenatal examination auxiliary bed, the design of the air outlet hole and the piston block displacement in cooperation with the valve ensures that the disposable shielding bag is tightly adsorbed on the cushion, preventing it from shifting during use and improving the stability and reliability of use.

[0018] 3. For the prenatal examination auxiliary bed, when the lifting rod moves outward, the tension pulley automatically disengages from the working state, cutting off the drive of the replacement mechanism, realizing an intelligent switching mechanism. When replacing the disposable shielding bag, the piston inflates to blow up the disposable shielding bag to avoid adhesion. At the same time, the tension pulley automatically fits the transmission belt for tensioning, making the replacement process more convenient and efficient.

[0019] 3. For the prenatal examination auxiliary bed, it can improve the user experience. The entire design fully considers the comfort and hygiene needs of pregnant women. Through the automated operation process and the intelligent switching mechanism, the user experience is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings: Figure 1 is a three-dimensional view of the overall structure of the present invention; Figure 2 is a sectional view of the structure of the bed body of the present invention; Figure 3 is a front view of the structure of the bed body of the present invention; Figure 4 Structural schematic diagram of the through-hole of the present invention; Figure 5 Structural schematic diagram of the hip support structure of the present invention; Figure 6 Structural schematic diagram of the replacement mechanism of the present invention; Figure 7 Structural schematic diagram of the air outlet hole of the present invention; Figure 8 Structural schematic diagram of the replacement mechanism and the hip support structure of the present invention; Figure 9 Structural schematic diagram of the vacuum structure of the present invention; Figure 10 Structural schematic diagram of the driving mechanism of the present invention; Figure 11 For the present invention Figure 8 Enlarged structural schematic diagram of A shown.

[0021] In the figure, 1 is the inspection auxiliary bed body; 101 is the base; 102 is the bed body; 103 is the inspection device; 1021 is the through-hole; 1022 is the protective frame; 1023 is the cavity; 103 is the inspection device; 2 is the hip support structure; 201 is the support seat; 202 is the cushion; 203 is the air outlet hole; 3 is the replacement mechanism; 301 is the mounting seat; 302 is the roller; 303 is the disposable shielding bag; 304 is the transmission wheel; 305 is the transmission belt; 4 is the vacuum structure; 401 is the sleeve; 402 is the piston block; 403 is the connecting pipe; 404 is the chamber; 405 is the lifting rod; 406 is the first limit seat; 407 is the screw; 5 is the adjustment structure; 501 is the mounting frame; 502 is the slider; 503 is the tensioning wheel; 504 is the connecting block; 505 is the connecting rod; 6 is the driving mechanism; 601 is the motor seat; 602 is the dual-axis driving motor; 603 is the first transmission shaft; 604 is the second transmission shaft; 605 is the worm; 606 is the worm gear; 607 is the transmission gear; 608 is the driven gear; 609 is the second limit seat. Detailed implementation manners

[0022] The following will cooperate with the drawings and embodiments to detail the implementation manners of the present application, so as to fully understand how the present application uses technical means to solve technical problems and achieve the implementation process of technical effects and implement accordingly.

[0023] As Figures 1 - 4As shown in the figure, the prenatal examination auxiliary bed provided in this embodiment includes an examination auxiliary bed body 1 composed of a bed body 102 and an examination device 103 installed on a base 101. A cavity 1023 and a through hole 1021 are formed inside the bed body 102. The through hole 1021 is communicated with the cavity 1023 and is also communicated with the upper surface of the bed body 102. A protective frame 1022 for protection is embedded and installed inside the through hole 1021. The protective frame 1022 embedded and installed inside the through hole 1021 plays an additional protective role, preventing direct contact between the pregnant woman and the edge of the bed body during the examination process and reducing the risk of cross-infection. A hip support structure 2 is installed in the cavity 1023. Among them, the hip support structure 2 includes a support seat 201 and a cushion 202 that are detachably connected. It should be noted that the shape of the cushion 202 is adapted to the through hole 1021. Through the detachably connected support seat 201 and cushion 202, a comfortable and stable support surface is provided for the pregnant woman. This design not only helps the pregnant woman to stay relaxed during the examination process, but also facilitates the cleaning and replacement of the cushion 202 to maintain hygiene. The shape of the cushion 202 is adapted to the through hole 1021, ensuring that the pregnant woman can be fully supported when lying down and reducing discomfort. The support seat 201 is hollow inside, and air outlet holes 203 communicated with the support seat 201 are formed inside the cushion 202. The air outlet holes 203 can be used for air outlet work, and at the same time, functional devices can be installed inside the support seat 201. Combining the detachable cushion 202 and the air outlet holes 203 design not only provides comfortable support, but also allows for functional expansion (such as heating, massage, etc.) according to actual needs, further improving the user experience. A sealing cover is bolted to the top of the bed body 102 for overhauling the internal structure of the cavity 1023. The examination auxiliary bed body 1 belongs to the conventional technology known to the public in the prior art, so the specific structural composition and working principle will not be elaborated too much in this article. As Figure 2 , Figures 5 - 11 shown, an examination auxiliary part for shielding the hip support structure 2 is installed in the cavity 1023; the examination auxiliary part is composed of a replacement mechanism 3, a vacuum structure 4, an adjustment structure 5 and a driving mechanism 6; the replacement mechanism 3 includes a mounting seat 301 fixed inside the cavity 1023 and a roller 302 rotatably installed inside the mounting seat 301. A disposable shielding bag 303 is wound and installed on the outer surface of the roller 302, effectively isolating direct contact between the pregnant woman and the examination device, reducing the risk of cross-infection and improving the hygiene standard. A transmission structure one for cooperating with the driving mechanism 6 is installed on the roller 302; among them, the transmission structure one is composed of two transmission wheels 304 and a transmission belt 305 transmission-connected between the two transmission wheels 304. The two transmission wheels 304 are respectively fixed to the same end of the two rollers 302.

[0024] Specifically, as Figure 2 , Figures 5 - 8As shown, the number of replacement mechanisms 3 is two, and the two replacement mechanisms 3 are symmetrically distributed in the cavity 1023. The disposable shielding bag 303 is wound and installed on the outer surfaces of the two rollers 302, and the disposable shielding bag 303 is located above the air outlet 203 and is attached to the upper surface of the gasket 202 through the vacuum structure 4. Among them, the vacuum structure 4 includes a sleeve 401 and a piston block 402 that are movably connected, and a connecting pipe 403 that is fixedly connected between the sleeve 401 and the hip support structure 2. A second transmission structure is installed between the piston block 402 and the driving mechanism 6; among them, the second transmission structure includes a lifting rod 405 and a screw rod 407 that are threadedly connected. The separated ends of the lifting rod 405 and the screw rod 407 are respectively connected to the piston block 402 and the mounting bracket 501. The driven gear 608 is fixed on the outer surface of the screw rod 407, and the driven gear 608 meshes with the driving gear 607.

[0025] As Figure 9 shown, a chamber 404 is opened in the sleeve 401. The piston block 402 is slidably arranged in the chamber 404, and a valve is installed in the piston block 402. Through the displacement of the piston block 402 and the cooperation of the valve, the disposable shielding bag 303 is tightly adsorbed, preventing its offset during the inspection process, and further ensuring hygiene and safety. A first limit seat 406 for limiting the lifting rod 405 is fixed inside the chamber 404. The lifting rod 405 slidably penetrates through the inside of the first limit seat 406. Through the installation of the first limit seat 406, the lifting rod 405 can be limited to move stably and improve the pulling effect. A support frame for supporting the screw rod 407 is installed on the inner bottom wall of the cavity 1023 to enable it to drive stably. The vacuum structure 4 includes a sleeve 401, a piston block 402, and a connecting pipe 403. The double-shaft drive motor 602 drives the second transmission structure (the lifting rod 405 and the screw rod 407) through the second driving parts (the driving gear 607 and the driven gear 608), so that the piston block 402 slides in the sleeve 401. The displacement of the piston block 402 cooperates with the valve, and the disposable shielding bag 303 is vacuum adsorbed through the connecting pipe 403 to make it closely fit on the upper surface of the gasket 202, isolating the direct contact between the pregnant woman and the gasket 202. The sleeve 401 is fixed inside the cavity 1023.

[0026] As Figure 2 、 Figures 5 - 8 、 Figure 10 and Figure 11As shown, the driving mechanism 6 includes a motor base 601 fixed to the inner bottom wall of the cavity 1023, a dual-axis driving motor 602 fixed inside the motor base 601, and a first driving member and a second driving member fixed to the two output shafts of the dual-axis driving motor 602. Among them, the first driving member is connected to the first transmission structure, and the second driving member is connected to the second transmission structure. Specifically, the first driving member includes a first transmission shaft 603 fixed to one of the transmission wheels 304 and a worm 605 fixed to one of the output shafts of the dual-axis driving motor 602. A worm gear 606 meshing with the worm 605 is fixed to the end of the first transmission shaft 603 away from the transmission wheel 304.

[0027] In this application, the support structure provides comfortable support for pregnant women. The use of the disposable shielding bag 303 effectively isolates the direct contact between the sanitary napkin 202 and the outside world, reduces the risk of bacterial cross-infection, and greatly improves the hygiene standard. The design of the dual-axis driving motor 602 and the transmission system enables the automatic winding and unwinding of the disposable shielding bag 303, eliminating the need for manual replacement and significantly improving the inspection efficiency. The meshing of the transmission gear and the driven gear and the rotation of the lead screw achieve the automatic displacement of the lifting rod 405, further simplifying the operation process.

[0028] Specifically, as Figure 10 and Figure 11 shown, the second driving member is composed of a second transmission shaft 604, a transmission gear 607, and a driven gear 608. A second limit seat 609 for supporting the second transmission shaft 604 is fixed to the outer surface of the mounting bracket 501. The two ends of the second transmission shaft 604 are respectively connected and fixed to the other output shaft of the dual-axis driving motor 602 and the transmission gear 607. By simultaneously driving the replacement mechanism 3 and the vacuum structure 4 with a single dual-axis driving motor 602, a high degree of automation is achieved, the operation process is simplified, and the work efficiency is improved. Moreover, the transmission design of the first transmission structure and the transmission structure enables the roller 302 and the piston block 402 to synchronously and accurately respond to the instructions of the driving motor, ensuring the smooth progress of the replacement of the disposable shielding bag 303 and the adsorption operation.

[0029] As Figure 11As shown in the figure, the adjusting structure 5 includes a sliding member slidably disposed inside the mounting frame 501, and a tension pulley 503 and a connecting rod 505 mounted on the outer surface of the sliding member and connected to the first transmission structure and the second transmission structure respectively. The sliding member includes a slider 502 fixedly installed inside the mounting frame 501 and a connecting block 504 fixed to one side of the slider 502 and extending outside the mounting frame 501. The tension pulley 503 is installed on the outer surface of the slider 502 by bearings, and the bottom side of the tension pulley 503 is in contact with the outer surface of the transmission belt 305. When the lifting rod 405 moves outward, the slider 502 is driven to move upward through the connecting rod 505. When the slider 502 moves upward, it will drive the tension pulley 503. At this time, the tension pulley 503 no longer performs the tensioning work, thereby cutting off the drive of the replacement mechanism 3. When it is necessary to replace the disposable shielding bag 303, the lifting rod 405 is moved inward. At this time, the piston block 402 performs the inflation work and blows up the disposable shielding bag 303 to prevent the disposable shielding bag 303 from sticking to the cushion. At the same time, the slider 502 drives the tension pulley 503 to move downward, and the tension pulley 503 fits with the transmission belt 305 for tensioning. Furthermore, the replacement mechanism 3 can work again to realize the replacement of the disposable shielding bag 303.

[0030] As Figures 1 - 11 shown, the principle of the prenatal examination auxiliary bed provided in this embodiment is as follows: When the present invention is in use, first, the buttocks support structure 2 can support the buttocks of the pregnant woman. The disposable shielding bag 303 is used to separate the cushion 202 to prevent the cushion 202 from being infected with bacteria. After the examination, the first transmission shaft 603 is driven by the double-shaft drive motor 602. The first transmission shaft 603 drives the transmission wheel 304 and cooperates with the transmission belt 305 to drive the two rollers 302 to rotate. When the two rollers 302 rotate, the disposable shielding bag 303 is wound and unwound. At this time, the used disposable shielding bag 303 is wound up, and a new disposable shielding bag 303 takes its place to re-separate the cushion 202, effectively improving the protection effect for the pregnant woman. Then, the second transmission shaft 604 is driven. The rotation of the screw rod 407 is driven by the engagement of the transmission gear 607 and the driven gear 608. The rotation of the screw rod 407 drives the lifting rod 405 to quickly move outside the sleeve 401. The displacement of the piston block 402 cooperates with the valve to achieve the suction work. Through the installation of the air outlet hole 203, the disposable shielding bag 303 is tightly adsorbed on the cushion 202 to prevent it from shifting; When the lifting rod 405 moves outward, the slider 502 is driven to move upward by the connecting rod 505. When the slider 502 moves upward, the tension pulley 503 is driven. At this time, the tension pulley 503 stops the tensioning work, thereby cutting off the drive of the replacement mechanism 3. When it is necessary to replace the disposable shielding bag 303, the lifting rod 405 is moved inward. At this time, the piston block 402 inflates and blows up the disposable shielding bag 303 to prevent the disposable shielding bag 303 from sticking to the cushion 202. At the same time, the slider 502 drives the tension pulley 503 to move downward, and the tension pulley 503 fits with the transmission belt 305 for tensioning. Then, the replacement mechanism 3 can work again to realize the replacement of the disposable shielding bag 303.

[0031] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as the criterion for distinction. As mentioned throughout the specification and claims, the term "comprising" is an open-ended term and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve technical problems within a certain error range and basically achieve the technical effect.

[0032] It should be noted that the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such commodity or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the element.

[0033] The above description shows and describes several preferred embodiments of the present invention. However, as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be within the scope of the inventive concept described herein, through the above teachings or the technology or knowledge in the relevant field. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. An antenatal examination auxiliary bed, comprising an examination auxiliary bed body (1) composed of a bed body (102) and an examination device (103) installed on a base (101), characterized in that, A cavity (1023) and a through hole (1021) are formed inside the bed body (102). A hip support structure (2) and an inspection auxiliary part for shielding the hip support structure (2) are installed in the cavity (1023). The hip support structure (2) includes a support base (201) and a cushion (202) that are detachably connected. The inspection auxiliary part is composed of a replacement mechanism (3), a vacuum structure (4), an adjustment structure (5), and a driving mechanism (6). The replacement mechanism (3) includes a mounting seat (301) fixed inside the cavity (1023) and a roller (302) rotatably mounted inside the mounting seat (301). A disposable shielding bag (303) is wound around the outer surface of the roller (302), and a first transmission structure for cooperating with the driving mechanism (6) is installed on the roller (302). The vacuum structure (4) includes a sleeve (401) and a piston block (402) that are movably connected, and a communication pipe (403) fixedly connected between the sleeve (401) and the hip support structure (2). A second transmission structure is installed between the piston block (402) and the driving mechanism (6). The adjustment structure (5) includes a sliding member slidably disposed inside the mounting frame (501), and a tension pulley (503) and a connecting rod (505) installed on the outer surface of the sliding member and respectively connected to the first transmission structure and the second transmission structure.

2. The prenatal examination auxiliary bed according to claim 1, characterized in that: The through hole (1021) communicates with the cavity (1023) and also communicates with the upper surface of the bed body (102). A protective frame (1022) for protection is embedded and installed inside the through hole (1021).

3. The prenatal examination auxiliary bed according to claim 1, characterized in that: The shape of the cushion (202) is adapted to the through hole (1021). The inside of the support base (201) is hollow, and air outlet holes (203) communicating with the support base (201) are formed inside the cushion (202).

4. The prenatal examination auxiliary bed according to claim 3, characterized in that: The number of the replacement mechanisms (3) is two. The two replacement mechanisms (3) are symmetrically distributed in the cavity (1023). The disposable shielding bag (303) is wound around the outer surfaces of the two rollers (302), and the disposable shielding bag (303) is located above the air outlet holes (203) and is attached to the upper surface of the cushion (202) through the vacuum structure (4).

5. The prenatal examination auxiliary bed according to claim 4, characterized in that: The first transmission structure is composed of two transmission wheels (304) and a transmission belt (305) drivingly connected between the two transmission wheels (304). The two transmission wheels (304) are respectively fixed to the same end of the two rollers (302).

6. The prenatal examination auxiliary bed according to claim 5, characterized in that: The driving mechanism (6) includes a motor seat (601) fixed on the inner bottom wall of the cavity (1023), a dual-axis driving motor (602) fixed inside the motor seat (601), and a first driving member and a second driving member fixed on the two output shafts of the dual-axis driving motor (602). Among them, the first driving member is connected to the first transmission structure, and the second driving member is connected to the second transmission structure.

7. The prenatal examination auxiliary bed according to claim 6, characterized in that: The first driving member includes a first transmission shaft (603) fixed to one of the transmission wheels (304) and a worm (605) fixed to one of the output shafts of the dual-axis driving motor (602). A worm gear (606) meshing with the worm (605) is fixed to the end of the first transmission shaft (603) away from the transmission wheel (304). The second driving member is composed of a second transmission shaft (604), a transmission gear (607), and a driven gear (608). A second limit seat (609) supporting the second transmission shaft (604) is fixed to the outer surface of the mounting bracket (501). The two ends of the second transmission shaft (604) are respectively connected and fixed to the other output shaft of the dual-axis driving motor (602) and the transmission gear (607).

8. An antenatal examination auxiliary bed according to claim 7, characterized in that: The second transmission structure includes a lifting rod (405) and a screw rod (407) connected by threads. The ends of the lifting rod (405) and the screw rod (407) away from each other are respectively connected to the piston block (402) and the mounting bracket (501). The driven gear (608) is fixed to the outer surface of the screw rod (407), and the driven gear (608) meshes with the transmission gear (607).

9. The prenatal examination assistance bed according to claim 1, characterized in that: A chamber (404) is formed in the sleeve (401). The piston block (402) is slidably disposed in the chamber (404), and a valve is installed in the piston block (402). A first limit seat (406) for limiting the lifting rod (405) is fixed to the inner side of the chamber (404), and the lifting rod (405) slidably penetrates through the inside of the first limit seat (406).

10. The prenatal examination auxiliary bed according to claim 5, characterized in that: The sliding member includes a slider (502) fixedly installed inside the mounting bracket (501) and a connecting block (504) fixed to one side of the slider (502) and extending to the outside of the mounting bracket (501). The tension pulley (503) is installed on the outer surface of the slider (502) by bearings, and the bottom side of the tension pulley (503) is in contact with the outer surface of the transmission belt (305).

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